A few of theories for composition of apical meristem .

二顶端分生组织组成的几种理论。

Diagnosis and differential diagnosis of apical ballooning syndrome .

心尖球形综合征的诊断及鉴别诊断。

The apical membrane of the epithelial cells is apparently essential .

上皮细胞的顶膜显然是必要的。

Stamens 4 , adnate to apical part of corolla tube .

花冠筒的雄蕊4，贴生于顶部。

Anthers without a membranous apical appendage .

没有一膜质顶端附属物的花药。